Self-positioning ampul and syringe



Aug. 3 1926. 1,594,493 l4. K. BFQCJVVPJ SELF POSITIONING AMPUL. AND SYRINGE Filed Sept. 16, 1922 I W 9.1mm

V 77.5 g3, a 7%" I CTHQM Patented Aug. 3, ""1926.

UNITED STATES nanny xmsnr snow, or cnrcaco, rumors.

SELF-POSITIONING AMPUL AN SYBINGE.

Application filed September 16, 1922. Serial in. 588,894.

My invention relates to improvements in' self-positioning ampul and syringe and it more especially consists of the features hereinafter pointed out in the annexed claims. The purpose of my invention is to provide a hypodermic syringe and related ampul that will safeguard the production and use of syringes and ampuls; that provides related self-positioning means on the ampul and the, syringe which cooperate with each other to invariably position an ampul which is inserted in the syringe in a predetermined position so that the designation ofcontents, measured portions, etc., may be eas1ly ascertainedby inspecting the ampul after it is placed in the syringe; that safeguards the use and authenticates the preparation of the ampul contents; that prevents the use of unstandardized ampuls for syringes; that makes provision for these advantages without adding to the complexity of construction or manipulation of the related parts; and ,that provides an ampul or carpule unitwhich may be used in a reversible manner, in either case insuring that the legend of contents etc., will be visible through the side openings of the syringe barrel or casing.

With these and other ends in view, I lllustrate in the accompanying drawing such instances of adaptation as will disclose the broad underlying features without limiting myself to the specific details shown thereon and described herein.

Figure 1 is a side elevation partly {in section on line -1 -1 of Fig. 3 of a syringe with an ampul in position therein.

Fig. 2 is an elevation in section on llne 2"2 5| I n Fig.3 is a cross section of Fig. 1 on l ne 3--3. a

Fig. 4 is an'isometric view of an ampul adapted to a cylinder shown in Fig. 3.

Fig. 5 is a cross section of Fig. 2 on line fi -5. I Fig. 6 is an isometric view of an ampul adapted-for use in the cylinder barrel of Fi 5.

Fig. 7 is a longitudinal elevation in section of an ampul with slidable closures at each end illustrating that the ampul may be used, if desired, in a reversible manner. Fig. 8 illustrates in cross section a hexagonal shaped ampul and syringe barrel with a similar interior conformation.

In-practically carrying out my invention, I

may use any desired form of syringe barrel or casing 1 which has side openings 2, and plunger cap 3, and a needle end cap 18. The barrel is provided with usual finger extensions 19'and the cap 3 hasa hub20' which passes into the barrel and abuts the end of an inserted ampul 7. The cap 3 has, a recess for the plunger 4 which engages one of the ampul closures. It has an opening of reduced diameter for the plunger rod 5 that terminates in a thumb piece 6, This cap 3 may be screwed on to the barrel 1 or placed thereon in any .ither desired manner so as, to be retained without accidental removal therefrom. The needle cap 18 may be slotted at 17 to admit of the insertion of the Y needle 15 as the needle enlargement 16 passes through a'connected open side 2 of the barrel. 1

The self-positioning feature of the ampul in the syringe barrel is not limited to the details of the barrel ca s, plunger, needle enlargement, etc., but is c aimed in its broad est aspect whether the ampul itself is or is not reversible. To efi'ect this result, the ampul itself may have a lengthwise bead 8 formed thereon which will engage a lengthwise groove 9 formed in the interior of the barrel 1. a.Sl1Ch a groove be readily formed in the barrel before the needle cap 18 is secured thereon by soldering or otherwise, through the use of what is known in mechanics as a drift. In case these selfpositioning means are to be used as shown, 1n Figs. 2 5 and 6, the groove 9 of the barrel 1 will become the fgroove 10 of the ampul 7 and the head 8 o the ampul in Fig. 8 will become the barrel head 11 of Fig. 5.

By reason of these self-positioning means, an ampul. can only be placed within a related barrel so as to. leave the graduations and the legend 12 of contents, .etc., visible through either of the side openings 2. If .the head 11 is formed on the interior of the barrel by exterior rolling or otherwise it will be im ossible to use any ampul that is not provi ed with a corresponding roove, whereas if a groove 9 is formed in t e barrel any ordinary unauthenticated ampul can be used therein but since only standardized and"authenticated ampuls will be provided with a corresponding head 8 such ampuls cannot be used in syringes which are not provided with the ove 9. In this way the users of ampuls wi be safeguarded against inferior syringes and possible deleterious ampul contents which without such provision would make it'extremely diflicult to guarantee the contents of ampuls as to purity,'quality, kind and source of production, thus insurlng the safe and rapid use of hypodermic syringes under the most stressing circumstances.

If desired, the ampuls may be used inca reversible manner in their end to end relation as shown in Fig, 7. The closures 13 and 14 may be of whatever form is found best and the reversibility may be understood by assuming that the closure 13 in the first position is penetrated by the inner end of the needle 15. In this position the closure 14 will be pushed by the plunger 4 toward the closure 13 as far as the dotted line 14. On the other hand if the closure 14 is penetrated by the short end of the needle 15, then the plunger 4 will move the closure 13 toward the closure 14 as far as indicated by.

the dotted line 13. 1

It is of course'understood that any form of expedient for definin the circumferential relation of the ampu to the barrel may be used,'for instance, as is shown in Fig. 8 wherein the barrel 21 has a hexagonal interior to conform to a hexagonal ampul 22. The barrel 21 has side openin 2 through which the ampul is visible. openings may be large enough .to admit of the ampul being inserted sideways if desired. There is a disadvantage in the use of an ampul and cylinder whose related selfpositionin means in cross section are in multiple diametrical pairs as exemplified in'Fi 8 because such. a cross section will not a ways definitel position an ampul in the barrel in a pre etermined circumferential relation, hence theadvantage of forming the self-positioning means approximate-- ly as shown. There may, of course, be a plurality of beads 8 or grooves 10 on each ampul as instanced in Figs. 3 and 4.

As this invention is of commanding and humanitarian importance it is claimed in its broadest interpretation regardless of the variable exigencies of materials, production etc., which may cause modifications of one ampul and syringe adapted to maintain their ne of these assembled relation to each other against rotation.

3. An ampul comprising a vreversible .t'ubular container, movable closures for the ends of the ampul, means on the circumference of such ampul ada ted to retain the same in use, and a tubu ar syringe having an opening in its wall, and cooperating means on its interior adapted to hold the ampul against rotation so as to leave certain arts'of it visible.

4. ampul provided on its outer surface with indications of its contents, etc, and means on such surfacein relation to said indications adapted to so position the ampul in a cooperatin tubular syringe that the indications will be visible through an opening in the syringe wall.

5. In hypodermic syringes, a barrel or casing, a removable ampul unit having indications thereon, a hollow needle cooperating with one end of the ampul, a plunger cooperating with the other end of the ampul, slidablemeans for closing the ampul ends, and cooperating means between the barrel and the ampul or defining their relation to each otherfaga-inst rotation in a predetermined position so as to leave the indicating portions of the ampul visible.

6. In hypodermic syringes, a barrel or casing, a needle ca at one end, a plunger cap at the other en a slidable plunger in the latter, a needle in the other end, a tubular ampul open at both ends and having indications thereon placed within the barrel between the needie and the plunger, and coop-t crating means. between a barrel havin an 7 opening in its side wall andthe ampul a ap 4 ed to limit the ampul to a predeterminednonrotative position in the barrel to thereby leave certain parts of the ampul visible through the said opening.

7. In hypodermic syringes, a suitable barrel havin an openin in its wall, means for controllably closing t e ends of the barrel so as to form an ampul chamber therebetween, and means within such chamber for defining the non-rotative relation of a cooperating ampul inserted therein to "so position' the; ampul in the syringe that indications on the ampul may be visible. v

8. A combined tubular hypodermic syringe havin an open-n in its wall,'a1emovable ampu' having sel -positioning means .on' its exterior surface ada ted to predeterm'inedly e syringe against rota,-

hold the ampul in t tion so as to ampuls.

9. .A combined hypodermic syrin e and ampul-comprising a syrin e having a engthwise bead and an ampul avi a cooperating groove adapted to prevent tie use of substitute ampuls.

10. A combined hy odermic syringe and ampul comprising ra ially formed'coo perprevent the use of unauthorized sting means between the syringe and ampul adapted to prevent the use of substitute ampuls.

11. In hypodermic syringes, a combined barrel and; an insertable ampulv adapted to enter the barrel, and cooperating means on the exterior of the ampul between the barrel and ampul fer preventing the use of noncooperating and unauthorized ampuls in said W barrel 12. A self authenticated ampul, comprising an open ended tubular member having closures for the same the wall ofseid memher having means formed thereon to predeterminedly locate the member in a syringe in a definite position to guard against the use of substitute ampuls. v

In testimony whereof I afiix my signature.

HENRY KINSEY BROWN-J 

